The blistering fecal sewage is the simplest sewage, we have tens of thousands of sewage plants across the country supporting the fan, the following is an introduction to China's main use of several fecal sewage treatment technology process:
(1) coarse filtration and municipal pipeline network discharge combined process.
In Shanghai, Beijing, some of the fecal waste station, the feces using coarse filtration, the filtrate will be discharged into the municipal pipeline network, the filter residue sent to the landfill for landfill treatment.(2) The process of combining coarse filtration, desanding and municipal pipe network discharge.
In Guangzhou, Foshan and Shanghai, some of the fecal waste station, the use of coarse filtration and desanding combined process, process flow as shown in Figure 6.(3) Process combining coarse filtration, desanding, desludging and dewatering with municipal pipe network discharge.
Beijing Gaobeidian manure treatment plant, Beijing Sijiqing manure treatment plant, Beijing Jiuxianqiao manure treatment plant, Beijing Beixiaohe manure treatment plant, Jiaxing organic fertilizer plant and so on are used in this treatment technology, the process flow is shown in Figure 1.
(4) coarse filtration, mud dewatering and biochemical treatment into an independent system of treatment processes.
The treated water can be discharged to the city sewer, and part of the solid-liquid separation part of the dilution of water dewatering equipment, such as rinsing water or watering water, so as to achieve effective, resourceful treatment of fecal wastewater. Process flow as shown in Figure 2.